19979857920

Names of 19979857920

• Cardinal: 19979857920 can be written as Nineteen billion, nine hundred seventy-nine million, eight hundred fifty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.997985792 × 10¹⁰

Factors of 19979857920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 122

Divisors of 19979857920

• Number of divisors d(n): 832
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 17 20 22 24 30 32 33 34 37 40 44 47 48 51 55 60 64 66 68 74 80 85 88 94 96 102 110 111 120 128 132 136 141 148 160 165 170 176 185 187 188 192 204 220 222 235 240 255 256 264 272 282 296 320 330 340 352 370 374 376 384 407 408 440 444 470 480 510 512 517 528 544 555 561 564 592 629 640 660 680 704 705 740 748 752 768 799 814 816 880 888 935 940 960 1020 1024 1034 1056 1088 1110 1122 1128 1184 1221 1258 1280 1320 1360 1408 1410 1480 1496 1504 1536 1551 1598 1628 1632 1739 1760 1776 1870 1880 1887 1920 2035 2040 2048 2068 2112 2176 2220 2244 2256 2368 2397 2442 2516 2560 2585 2640 2720 2805 2816 2820 2960 2992 3008 3072 3102 3145 3196 3256 3264 3478 3520 3552 3740 3760 3774 3840 3995 4070 4080 4096 4136 4224 4352 4440 4488 4512 4736 4794 4884 5032 5120 5170 5217 5280 5440 5610 5632 5640 5920 5984 6016 6105 6144 6204 6290 6392 6512 6528 6919 6956 7040 7104 7480 7520 7548 7680 7755 7990 8140 8160 8272 8448 8695 8704 8789 8880 8976 9024 9435 9472 9588 9768 10064 10240 10340 10434 10560 10880 11220 11264 11280 11840 11968 11985 12032 12210 12288 12408 12580 12784 13024 13056 13838 13912 14080 14208 14960 15040 15096 15360 15510 15980 16280 16320 16544 16896 17390 17408 17578 17760 17952 18048 18870 18944 19129 19176 19536 20128 20480 20680 20757 20868 21120 21760 22440 22528 22560 23680 23936 23970 24064 24420 24816 25160 25568 26048 26085 26112 26367 27676 27824 28160 28416 29563 29920 30080 30192 30720 31020 31960 32560 32640 33088 33792 34595 34780 34816 35156 35520 35904 36096 37740 37888 38258 38352 39072 40256 41360 41514 41736 42240 43520 43945 44880 45056 45120 47360 47872 47940 48128 48840 49632 50320 51136 52096 52170 52224 52734 55352 55648 56320 56832 57387 59126 59840 60160 60384 61440 62040 63920 65120 65280 66176 67584 69190 69560 69632 70312 71040 71808 72192 75480 75776 76516 76704 78144 80512 82720 83028 83472 84480 87040 87890 88689 89760 90240 94720 95645 95744 95880 96256 97680 99264 100640 102272 103785 104192 104340 104448 105468 110704 111296 112640 113664 114774 118252 119680 120320 120768 124080 127840 130240 130560 131835 132352 135168 138380 139120 140624 142080 143616 144384 147815 150960 151552 153032 153408 156288 161024 165440 166056 166944 168960 174080 175780 177378 179520 180480 189440 191290 191488 191760 192512 195360 198528 201280 204544 207570 208384 208680 208896 210936 221408 222592 225280 227328 229548 236504 239360 240640 241536 248160 255680 260480 261120 263670 264704 276760 278240 281248 284160 286935 287232 288768 295630 301920 306064 306816 312576 322048 325193 330880 332112 333888 337920 348160 351560 354756 359040 360960 378880 382580 382976 383520 390720 397056 402560 409088 415140 416768 417360 421872 442816 443445 445184 454656 459096 473008 478720 481280 483072 496320 511360 520960 522240 527340 529408 553520 556480 562496 568320 573870 574464 577536 591260 603840 612128 613632 625152 644096 650386 661760 664224 667776 675840 703120 709512 718080 721920 757760 765160 765952 767040 781440 794112 805120 818176 830280 833536 834720 843744 885632 886890 890368 918192 946016 957440 962560 966144 975579 992640 1022720 1041920 1044480 1054680 1058816 1107040 1112960 1124992 1136640 1147740 1148928 1182520 1207680 1224256 1227264 1250304 1288192 1300772 1323520 1328448 1335552 1406240 1419024 1436160 1443840 1530320 1534080 1562880 1588224 1610240 1625965 1636352 1660560 1667072 1669440 1687488 1771264 1773780 1780736 1836384 1892032 1914880 1932288 1951158 1985280 2045440 2083840 2109360 2117632 2214080 2225920 2249984 2273280 2295480 2297856 2365040 2415360 2448512 2454528 2500608 2576384 2601544 2647040 2656896 2671104 2812480 2838048 2872320 2887680 3060640 3068160 3125760 3176448 3220480 3251930 3272704 3321120 3338880 3374976 3542528 3547560 3561472 3672768 3784064 3829760 3864576 3902316 3970560 4090880 4167680 4218720 4428160 4451840 4499968 4590960 4730080 4830720 4877895 4897024 4909056 5001216 5203088 5294080 5313792 5342208 5624960 5676096 5744640 6121280 6136320 6251520 6352896 6440960 6503860 6642240 6677760 6749952 7085056 7095120 7122944 7345536 7568128 7729152 7804632 7941120 8181760 8335360 8437440 8856320 8903680 8999936 9181920 9460160 9661440 9755790 9794048 9818112 10406176 10588160 10627584 10684416 11249920 11352192 11489280 12242560 12272640 12503040 12881920 13007720 13284480 13355520 13499904 14170112 14190240 14691072 15136256 15609264 15882240 16363520 16874880 17712640 17807360 17999872 18363840 18920320 19322880 19511580 19588096 20812352 21255168 21368832 22499840 22704384 24485120 24545280 25006080 26015440 26568960 26711040 26999808 28340224 28380480 29382144 30272512 31218528 31764480 33749760 35425280 35614720 35999744 36727680 37840640 38645760 39023160 39176192 41624704 42510336 44999680 45408768 48970240 49090560 52030880 53137920 53422080 53999616 56760960 58764288 60545024 62437056 67499520 70850560 73455360 75681280 78046320 78352384 83249408 85020672 89999360 90817536 97940480 104061760 106275840 106844160 107999232 113521920 117528576 121090048 124874112 134999040 141701120 146910720 151362560 156092640 166498816 179998720 181635072 195880960 208123520 212551680 227043840 235057152 249748224 269998080 293821440 302725120 312185280 332997632 363270144 391761920 416247040 425103360 454087680 499496448 539996160 587642880 605450240 624370560 665995264 832494080 908175360 998992896 1175285760 1248741120 1331990528 1664988160 1816350720 1997985792 2497482240 3329976320 3995971584 4994964480 6659952640 9989928960 19979857920
• Sum of all divisors σ(n): 77450950656
• Sum of proper divisors (its aliquot sum) s(n): 57471092736
• 19979857920 is an abundant number, because the sum of its proper divisors (57471092736) is greater than itself. Its abundance is 37491234816

Bases of 19979857920

• Binary: 10010100110111001000111000000000000₂
• Hexadecimal: 0x4A6E47000
• Base-36: 96FHP1C

Squares and roots of 19979857920

• 19979857920 squared (19979857920²) is 399194722503386726400
• 19979857920 cubed (19979857920³) is 7975853838031493512285913088000
• The square root of 19979857920 is 141350.1252917733
• The cube root of 19979857920 is 2713.5060769081

Scales and comparisons

• 19,979,857,920 seconds is equal to 635 years, 15 weeks, 3 days, 8 hours, 32 minutes.
• To count from 1 to 19,979,857,920 would take you about one thousand, two hundred seventy years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 19979857920 cubic inches would be around 226.1 feet tall.

Recreational maths with 19979857920

• 19979857920 backwards is 02975897991
• 19979857920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 19979857920's digits is 66
• More coming soon!